Installation Guide
Tools Needed:
- Adjustable wrench
- Level
- Screwdrivers (flat and Phillips)
- Pliers
- Tape measure
- Wi-Fi network information
Step-by-Step Installation
- Choose Installation Location: Select a location near necessary plumbing, electrical connections, and strong Wi-Fi signal on a solid, level floor.
- Remove Shipping Materials: Remove all shipping bolts and packaging materials from both washer and dryer units.
- Connect Water Supply: Connect hot and cold water supply lines to the washer's water inlet valves. Use only new hoses.
- Connect Drain System: Route the drain hose into a standpipe or laundry tub with a high loop to prevent backflow.
- Electrical Connection: Connect to properly grounded outlets. Washer: 120V, 60Hz. Dryer: 240V for electric models.
- Ventilation Setup: Install proper ventilation for dryer with minimal bends in the ductwork.
- ThinQ App Setup: Download LG ThinQ app, create account, and connect both appliances to your home Wi-Fi network.
- Level the Units: Adjust the leveling legs to ensure both washer and dryer are level from front to back and side to side.
- Test Run: Run both appliances through complete cycles to check for proper operation and connectivity.
Specifications
| Model Series | WM4000HWA / DLEX4000W |
| Type | Front Load Washer and Electric Dryer |
| Color | White / Graphite Steel |
| Capacity (Washer/Dryer) | 4.5 cu.ft. / 7.4 cu.ft. |
| Noise Level (Wash/Spin) | 52 dB / 68 dB |
| Control Type | Touch Controls with LCD Display + ThinQ App |
| Energy Rating | ENERGY STAR® Most Efficient |
| Water Consumption | 8,200 L/year |
| Power Requirements | 120V Washer / 240V Dryer |
| Dimensions (HxWxD) | Washer: 39 x 27 x 30 in / Dryer: 39 x 27 x 32 in |
| Weight | Washer: 185 lbs / Dryer: 125 lbs |
| Max Spin Speed | 1300 RPM |
Warranty Information
- Full Warranty: 1 year parts and labor
- Motor Warranty: 10 years on Direct Drive Motor
- Additional Coverage: Optional extended warranty available
For warranty service, contact LG Customer Service at 1-800-243-0000 or visit LG.com
Key Features
LG ThinQ Technology
Smart connectivity allows remote control, cycle monitoring, and diagnostics through the LG ThinQ mobile app from anywhere.
Direct Drive Motor
LG's innovative Direct Drive motor connects directly to the drum without belts, reducing noise and vibration while increasing reliability.
TurboSteam™ Technology
Quickly removes wrinkles and reduces allergens using steam technology in both washer and dryer for fresh, hygienic laundry.
Sensor Dry System
Automatically senses moisture levels and adjusts drying time to prevent over-drying and save energy.
Voice Control
Compatible with Amazon Alexa and Google Assistant for hands-free control of your laundry appliances.
Cycle Sync Technology
Automatically coordinates washer and dryer cycles for optimal laundry efficiency and convenience.
Smart ThinQ Features
Remote Start
Start and monitor cycles remotely from your smartphone
Cycle Monitoring
Track cycle progress and receive completion alerts
Diagnostic Alerts
Receive maintenance reminders and troubleshooting guidance
Software Updates
Automatic updates with new features and improvements
Usage Reports
Monitor energy and water consumption over time
Custom Cycles
Create and save custom wash and dry cycles
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| ThinQ app connection issues | Wi-Fi signal weak, incorrect setup, network configuration | Check Wi-Fi signal, reinstall app, ensure 2.4GHz network, reset network settings |
| Washer won't start remotely | Door not closed, child lock enabled, network issues | Ensure door closed, disable child lock, check internet connection |
| Dryer not heating properly | Vent blockage, heating element, thermal fuse | Clean vent system, check heating element, inspect thermal fuse |
| Error codes on display | Various system malfunctions | Refer to error code section below, contact support if persistent |
| App not receiving notifications | Notification settings, app permissions, background data | Check app notification settings, enable background data, reinstall app |
| Voice control not working | Skill not enabled, device not linked, connection issues | Enable LG ThinQ skill, link account, check device connectivity |
Error Codes
- IE: Water supply issue - Check water supply and inlet valve
- OE: Drain issue - Check drain hose and pump
- FE: Flooding detected - Check for leaks and water supply
- LE: Motor issue - Contact service center
- dE: Door not closed properly - Ensure door is fully closed
- UE: Unbalanced load - Redistribute clothes and restart
- tE: Temperature sensor error - Contact service center
- PF: Power failure - Reset appliance and restart cycle
Manual Downloads
Current ThinQ Models
WM4000HWA
4.5 cu.ft. ThinQ Washer
DLGX4001W
7.4 cu.ft. ThinQ Dryer
WM3900HWA
4.5 cu.ft. Smart Washer
DLGX3901W
7.4 cu.ft. Smart Dryer
Popular ThinQ Combos
WM3488HW
ThinQ Washer/Dryer Combo
WM3998HWA
Smart Front Load Combo
WKGX201HWA
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